Data set 01
1950 Sylvania
Published operating points and test conditions from this source.
SECTION 1
Cathode Ray
Characteristics
Focusing method
Electrostatic
Deflection method
Electrostatic
Application
Application
Electrostatic charge printing
Specialized - Cathode Ray ·CathodeRay
SC3551
Special-purpose electrostatically focused and deflected instrument CRT offered with P1, P2, P7, or P11 phosphors for oscillographic display with different fluorescence and persistence requirements.
Directly heatedCold cathodeCommon cathodeDissimilarSpecialized
- Sections
- 1
- Base
- -
- Socket code
- -
- Base pins
- -
- Nominal heater
- 1.5 V / 140 mA
Description
Sylvania SC3551 special-purpose CRT with electrostatic focus and electrostatic deflection; P1/P2/P7/P11 available. Published high-voltage ratings, focus/deflection data, capacitances, circuit limits, and typical operating conditions were extracted from the supplied datasheet.
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- -
- Socket code
- -
- Base pins
- -
- Nominal heater voltage
- 1.5 V
- Nominal heater current
- 140 mA
- Parallel heater voltage
- -
- Parallel heater current
- -
- Series capable
- No
Terminal pinout
Electrical assignments shared by every tube using this base designation.
No verified pinout is recorded for this base designation.
Section ratings
1 physical section, each with unique specifications.
Section 1
Cathode Ray
X-ray radiationInterelectrode capacitances
- Max plate voltage
- 6600 V
Special-purpose cathode-ray tube; published ratings and construction data captured.
Source-dependent data
Operating conditions by source
Each block preserves the test conditions and published values from one reference. Values from different sources are intentionally kept separate.
Data set 02
1965 Sylvania Electronic Tubes Vol3
Published operating points and test conditions from this source.
SECTION 1
Cathode Ray
Characteristic
Heater Voltage
1.5 V
Heater Current
140 mA
FocusingMethod
Electrostatic
DeflectionMethod
Electrostatic
PhosphorOrScreen
P1/P2/P7/P11 available
UsefulScreenOrScan
~2.5 inch
ModulationMaximum
30 V
LineWidthMaximum
0.45 mm
DeflectionFactorUniformityMaximum
2 %
Grid1 To All Capacitance
8 pF
Cathode To All Capacitance
6 pF
Other
AnodeVoltageMaximum
6600 V
Grid1NegativeBiasMagnitudeMaximum
220 V
Grid1PositiveBiasMaximum
0 V
Grid1PositivePeakVoltageMaximum
2 V
Grid1CircuitResistanceMaximum
1.5 Mohm
HeaterCathodeVoltageMaximum
200 V
AfterWarmup
PeakVoltageAnodeToDeflectionPlate
550 V
Anode3VoltageMaximum
6600 V
Anode2VoltageMaximum
2200 V
PostAcceleratorHelixResistanceMinimum
200 Mohm
PostAcceleratorHelixResistanceMaximum
600 Mohm
Anode Voltage
3000 V
FocusElectrodeVoltage
0 to 300 V
Grid1VoltageForCutoff
-30 to -50 V
DeflectionFactorD1D2
27 to 33 V/in
DeflectionFactorD3D4
23 to 29 V/in